IP Library › Granted Patent US 7,150,168
Granted Patent B1
US 7,150,168 · App. 11/297,469 · Granted Dec 19, 2006

Tubular pin tumbler lock unit

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Quick Facts
Patent No.
US 7,150,168
App. No.
11/297,469
Granted
Dec 19, 2006
Kind
B1
Abstract

A tubular lock unit has a lock and key. An upper pin seat and a lower pin seat with multiple pins are respectively mounted in the lock. A shaft is inserted into the lower pin seat and connected to the upper pin seat. The upper pin seat has an annular keyway and a slot is defined in a sidewall. The key has a barrel and a protrusion extending out of the barrel. When the key is inserted into the keyway, the protrusion is inserted into the slot and a lower end of the protrusion meets with an upper end of the lower pin seat to rotate the upper pin seat. When an improper key is inserted into the keyway and rotated, at least one of the pins will remain extended into the upper pin seat to prevent rotation.

Claims (17)

1. A tubular lock unit comprising:

a lock having

a hollow cylinder with a hole in an end;

a lower pin seat securely mounted in the cylinder and having

multiple lower pin openings defined evenly and radially therein;

an upper pin seat mounted rotatably in the cylinder and abutting an upper end of the lower pin seat and having

an annular keyway defined axially in an upper end thereof,

a slot defined radially in an outer sidewall and in communication with the keyway, and

multiple upper pin openings defined evenly and radially in a sidewall of the keyway corresponding to the lower pin openings in the lower pin seat;

multiple lower pins inserted into the lower pin openings;

multiple upper pins inserted into the upper pin openings; and

a shaft inserted into the lower pin seat and connected to the upper pin seat; and

a key corresponding to the lock and having

a barrel corresponding with the keyway and having

a lug mounted longitudinally in a sidewall thereof, and

a protrusion formed on an end of the lug and extending downward wherein when the protrusion is inserted into the slot, a lower end of the protrusion meets with an upper end of the lower pin seat.

2. The tubular lock unit as claimed in claim 1 , wherein the slot extends radially in the upper pin seat to form an open end.

Assignments (9)
ASSIGNMENT AND ASSUMPTION OF INTELLECTUAL PROPERTY SECURITY AGREEMENT RECORDED AT R/F 028217/0360 Recorded May 23, 2013
From: BARCLAYS BANK PLC, AS EXISTING ADMINISTRATIVE AGENT, EXISTING SWING LINE LENDER AND EXISTING L/C ISSUER
To: BANK OF AMERICA, N.A., AS NEW ADMINISTRATIVE AGENT, SWING LINE LENDER AND L/C ISSUER
Reel/Frame 030486/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE MISSING ASSIGNEES ON THE RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED ON REEL 028168 FRAME 0738. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNEES ACCO BRANDS USA LLC, AND GENERAL BINDING CORPORATION ARE ADDITIONAL ASIGNEES. Recorded Jul 3, 2012
From: DEUTSCHE BANK AG NEW YORK BRANK, AS COLLATERAL AGENT
To: ACCO BRANDS CORPORATION; ACCO BRANDS USA LLC; GENERAL BINDING CORPORATION
Reel/Frame 028488/0056 →
CORRECTIVE ASSIGNMENT TO CORRECT THE THE MISSING ASSIGNEES ON THE RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED ON REEL 028168 FRAME 0713. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNEES ACCO BRANDS USA LLC AND GENERAL BINDING CORPORATION ARE ADDITIONAL ASSIGNEES. Recorded Jul 3, 2012
From: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE
To: ACCO BRANDS CORPORATION; ACCO BRANDS USA LLC; GENERAL BINDING CORPORATION
Reel/Frame 028487/0671 →
SECURITY AGREEMENT Recorded May 16, 2012
From: ACCO BRANDS USA LLC
To: BARCLAYS BANK PLC, AS ADMINISTRATIVE AGENT
Reel/Frame 028217/0360 →
RELEASE OF SECURITY INTEREST Recorded May 7, 2012
From: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE
To: ACCO BRANDS CORPORATION
Reel/Frame 028168/0713 →
RELEASE OF SECURITY INTEREST Recorded May 7, 2012
From: DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT
To: ACCO BRANDS CORPORATION
Reel/Frame 028168/0738 →
SECURITY AGREEMENT Recorded Oct 30, 2009
From: ACCO BRANDS CORPORATION; ACCO BRANDS USA LLC; DAY-TIMERS INC.; GENERAL BINDING CORPORATION; ACCO INTERNATIONAL HOLDINGS, INC.; GBC INTERNATIONAL, INC.; ACCO BRANDS INTERNATIONAL, INC.; ACCO EUROPE FINANCE HOLDINGS, LLC; ACCO EUROPE INTERNATIONAL HOLDINGS LLC; BOONE INTERNATIONAL, INC.; POLYBLEND CORPORATION; SWINGLINE, INC.
To: DEUTSCHE BANK AG NEW YORK BRANCH
Reel/Frame 023449/0180 →
SECURITY AGREEMENT Recorded Oct 2, 2009
From: ACCO BRANDS CORPORATION; ACCO BRANDS USA LLC; DAY-TIMERS INC.; GENERAL BINDING CORPORATION; ACCO INTERNATIONAL HOLDINGS, INC.; GBC INTERNATIONAL, INC.; ACCO BRANDS INTERNATIONAL, INC.; ACCO EUROPE FINANCE HOLDINGS, LLC; ACCO EUROPE INTERNATIONAL HOLDINGS LLC; BOONE INTERNATIONAL, INC.; POLYBLEND CORPORATION; SWINGLINE, INC.
To: U.S. BANK NATIONAL ASSOCIATION
Reel/Frame 023312/0902 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 10, 2008
From: KUO, LAMBERT; ANDRES, GUILLERMO
To: ACCO BRANDS USA LLC
Reel/Frame 021658/0702 →